Fig. 7From: ‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediationSchematic for the antimicrobial activity for the five bacterial strains: a Staphylococcus aureus, b Klebsiella pneumonia, c Pseudomonas aeruginosa, d Vibrio cholera, and e Proteus vulgaris. Numbers of 1 through 6 inside each strain denote: (1) nickel chloride, (2) control ciprofloxacin, (3) Desmodium gangeticum root extract, (4) negative control, (5) nickel NPs prepared by a green method, and (6) nickel NPs prepared by a chemical method [229]Back to article page